Fantasy Tip: Mariota has gone three straight games with less than 200 passing yards and has posted two touchdowns and four interceptions during that span. He will have a favorable matchup this week and could be a low-end No. 1 quarterback in deeper leagues.

Updating a previous report, Tennessee Titans QB Marcus Mariota's (knee) injury is not considered "real serious," according to head coach Mike Mularkey, though the latter conceded that it did "affect a number of things" and limited the club "game plan-wise" in their Week 14 game Sunday, Dec. 10, against the Arizona Cardinals.

Fantasy Tip: While the former Heisman Trophy winner has a favorable matchup on tap with San Francisco, it's definitely concerning that not only is he banged up, but he's also coming off a performance that saw him register a season-low 39.6 QB Rating. Owners will have to closely follow his status throughout the next few days, as there's little chance Mariota is 100 percent by next week.

Fantasy Tip: Mariota has been one of the biggest disappointments of the 2017 fantasy season. Of course, not being at 100% may be partly to blame for that. On the year he is the QB18 and is a risky start going forward no matter the matchup.

Fantasy Tip: Matthews should be the No. 1 receiver in this offense, but he is still more of a WR3 or WR4 in most fantasy when he is running hot. Right now, he is more of a WR4 or WR5 as the Titans offense limps along.

Fantasy Tip: Walker was nursing an ankle injury in practice earlier this week but it didn't appear to hinder him in this game. He has four or more receptions in seven consecutive outings, although his touchdown streak ended at two games. He remains a low-end TE1 in most fantasy leagues at this point.

Fantasy Tip: Decker hasn't had a very good season, and then the week the team's offense is at its worst he has one of his better outings. That's how inconsistent he has been this season. Treat him as a WR5 in deeper fantasy leagues at this point.

Fantasy Tip: The touchdown was nice for Henry, but it was a poor outing all around for the Tennessee offense. He didn't pile up the yardage like in past games and he had eight touches to 13 for DeMarco Murray. He remains the backup and a low-end RB3 or flex fantasy play in leagues of 12 or more teams as long as Murray is active.